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Status of Invasive Plants in Texas

Total number of exotic species reported: 518

Total number of records in EDDMapS: 49331


Invasive Plants by Category

  • Aquatic - 19 species, 1067 records
  • Cactus - 1 species, 9 records
  • Conifer Trees - 1 species, 1 records
  • Ferns - 1 species, 4 records
  • Forbs/Herbs - 236 species, 7302 records
  • Grass or Grasslike - 115 species, 10224 records
  • Hardwood Trees - 49 species, 7930 records
  • Shrub or Subshrub - 53 species, 7471 records
  • Vines - 43 species, 6464 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. Japanese honeysuckle - 4465 reports
  2. Chinese tallowtree - 3652 reports
  3. chinaberry - 1958 reports
  4. johnsongrass - 1702 reports
  5. sacred bamboo - 1330 reports
  6. glossy privet - 1322 reports
  7. privet - 1254 reports
  8. giant reed - 994 reports
  9. Chinese privet - 893 reports
  10. bermudagrass - 818 reports

Top Ten Widespread Invasive Plants (by number of positive counties)

  1. bristlegrass - 189/254 (74%)
  2. johnsongrass - 175/254 (69%)
  3. rescuegrass - 151/254 (59%)
  4. giant reed - 134/254 (53%)
  5. bermudagrass - 132/254 (52%)
  6. chinaberry - 122/254 (48%)
  7. dallisgrass - 117/254 (46%)
  8. barnyardgrass - 116/254 (46%)
  9. puncturevine - 113/254 (44%)
  10. yellow sweet-clover - 110/254 (43%)

Counties with the most invasive species reported

  1. Travis County - 295 species
  2. Brazos County - 292 species
  3. Harris County - 281 species
  4. Tarrant County - 250 species
  5. Dallas County - 245 species
  6. Gillespie County - 224 species
  7. Walker County - 216 species
  8. Grayson County - 213 species
  9. Robertson County - 194 species
  10. Galveston County - 189 species

Counties with the least invasive species reported

  1. Stonewall County - 5 species
  2. Glasscock County - 5 species
  3. Haskell County - 5 species
  4. Borden County - 6 species
  5. Fisher County - 6 species
  6. Cochran County - 7 species
  7. Kent County - 7 species
  8. Mitchell County - 8 species
  9. Baylor County - 9 species
  10. Sterling County - 10 species

Report created on October 23, 2014 at 01:09 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.